<template>
  <div>
    <!-- 评论列表 -->
    <div
      class="cmt-list"
      :class="{
        'art-cmt-container-1': isShowComBox,
        'art-cmt-container-2': !isShowComBox,
      }"
    >
      <!-- 评论的 Item 项 -->
      <div class="cmt-item" v-for="obj in commentList" :key="obj.com_id">
        <!-- 头部区域 -->
        <div class="cmt-header">
          <!-- 头部左侧 -->
          <div class="cmt-header-left">
            <img :src="obj.aut_photo" alt="" class="avatar" />
            <span class="uname">{{ obj.aut_name }}</span>
          </div>
          <!-- 头部右侧 -->
          <div class="cmt-header-right">
            <van-icon
              name="like"
              size="16"
              color="red"
              v-if="obj.is_liking === true"
              @click="showLikeFn(false, obj)"
            />
            <van-icon
              name="like-o"
              size="16"
              color="gray"
              v-else
              @click="showLikeFn(true, obj)"
            />
          </div>
        </div>
        <!-- 主体区域 -->
        <div class="cmt-body">
          {{ obj.content }}
        </div>
        <!-- 尾部区域 -->
        <div class="cmt-footer">{{ theTime(obj.pubdate) }}</div>
      </div>
    </div>
    <!-- 发表评论 -->
    <div>
      <!-- 底部添加评论区域 - 1 -->
      <div class="add-cmt-box van-hairline--top" v-if="isShowComBox == true">
        <van-icon name="arrow-left" size="0.48rem" @click="$router.back()" />
        <div class="ipt-cmt-div" @click="publishComment">发表评论</div>
        <div class="icon-box">
          <van-badge
            :content="commentList.length === 0 ? '' : commentList.length"
            max="99"
          >
            <van-icon
              name="comment-o"
              size="0.53333334rem"
              @click="gotoComment"
            />
          </van-badge>
          <div>
            <van-icon
              name="star-o"
              size="0.53333334rem"
              v-if="!isShare"
              @click="isShareFn(true)"
            />
            <van-icon
              name="star"
              size="0.53333334rem"
              color="#FF69B4"
              v-else
              @click="isShareFn(false)"
            />
          </div>
          <div>
            <van-icon
              name="share-o"
              size="0.53333334rem"
              @click="showShare = true"
            />
            <van-share-sheet
              v-model="showShare"
              title="立即分享给好友"
              :options="options"
              @select="onSelect"
            />
          </div>
        </div>
      </div>
      <!-- 底部添加评论区域 - 2 -->
      <div class="cmt-box van-hairline--top" v-else>
        <textarea
          placeholder="友善评论、理性发言、阳光心灵"
          v-fofo
          @blur="blurFn"
          v-model.trim="myComment"
        ></textarea>
        <van-button
          type="default"
          :disabled="myComment.length == 0"
          @click="sendFn()"
          >发布</van-button
        >
      </div>
    </div>
  </div>
</template>

<script>
import {
  reqCommentList,
  reqCommentLike,
  reqCommentDislike,
  reqSendComment,
} from "@/api";
import { timeAgo } from "@/utils/day";
export default {
  name: "CommentList",
  data() {
    return {
      offset: null,
      commentList: JSON.parse(localStorage.getItem("commentList")) || [],
      isShowComBox: true,
      isShare: false,
      commentCount: 0,
      myComment: "",
      showShare: false,
      options: [
        { name: "微信", icon: "wechat" },
        { name: "朋友圈", icon: "wechat-moments" },
        { name: "微博", icon: "weibo" },
        { name: "QQ", icon: "qq" },
      ],
    };
  },
  created() {
    this.getCommentList();
  },
  methods: {
    theTime: timeAgo,
    async getCommentList() {
      if (localStorage.getItem("commentList") == null) {
        const res = await reqCommentList({
          art_id: this.$route.query.art_id,
        });
        if (res.data.status == 200) {
          this.commentList = res.data.data.results;
          this.commentCount = res.data.data.total_count;
        }
      }
    },
    async showLikeFn(type, obj) {
      if (type == true) {
        this.commentList.forEach((item) => {
          if (item.com_id == obj.com_id) {
            item.is_liking = true;
            localStorage.setItem(
              "commentList",
              JSON.stringify(this.commentList)
            );
          }
        });
      } else {
        this.commentList.forEach((item) => {
          if (item.com_id == obj.com_id) {
            item.is_liking = false;
            localStorage.setItem(
              "commentList",
              JSON.stringify(this.commentList)
            );
          }
        });
      }
    },
    publishComment() {
      this.isShowComBox = false;
    },
    blurFn() {
      setTimeout(() => {
        this.isShowComBox = true;
      }, 0);
    },
    async sendFn() {
      const res = await reqSendComment({
        art_id: this.$route.query.art_id,
        context: this.myComment,
      });
      console.log(res);
      if (res.status == 201) {
        this.commentList.unshift(res.data.data.new_obj);
        this.myComment = "";
        localStorage.setItem("commentList", JSON.stringify(this.commentList));
      }
    },
    gotoComment() {
      let viewHight = document.querySelector(".article-container").scrollHeight;
      window.scrollTo(0, viewHight);
    },
    onSelect(option) {
      Toast(option.name);
      this.showShare = false;
    },
    isShareFn(type) {
      if (type == true) {
        this.isShare = true;
      } else {
        this.isShare = false;
      }
    },
  },
};
</script>

<style scoped lang="less">
.cmt-list {
  padding: 10px;
  .cmt-item {
    padding: 15px 0;
    + .cmt-item {
      border-top: 1px solid #f8f8f8;
    }
    .cmt-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      .cmt-header-left {
        display: flex;
        align-items: center;
        .avatar {
          width: 40px;
          height: 40px;
          background-color: #f8f8f8;
          border-radius: 50%;
          margin-right: 15px;
        }
        .uname {
          font-size: 12px;
        }
      }
    }
    .cmt-body {
      font-size: 14px;
      line-height: 28px;
      text-indent: 2em;
      margin-top: 6px;
      word-break: break-all;
    }
    .cmt-footer {
      font-size: 12px;
      color: gray;
      margin-top: 10px;
    }
  }
}
/*美化 - 文章详情 - 底部的评论页面 */
// 外层容器
.art-cmt-container-1 {
  padding-bottom: 46px;
}
.art-cmt-container-2 {
  padding-bottom: 80px;
}

// 发布评论的盒子 - 1
.add-cmt-box {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box;
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 46px;
  line-height: 46px;
  padding-left: 10px;
  .ipt-cmt-div {
    flex: 1;
    border: 1px solid #efefef;
    border-radius: 15px;
    height: 30px;
    font-size: 12px;
    line-height: 30px;
    padding-left: 15px;
    margin-left: 10px;
    background-color: #f8f8f8;
  }
  .icon-box {
    width: 40%;
    display: flex;
    justify-content: space-evenly;
    line-height: 0;
  }
}

.child {
  width: 20px;
  height: 20px;
  background: #f2f3f5;
}

// 发布评论的盒子 - 2
.cmt-box {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  padding-left: 10px;
  box-sizing: border-box;
  background-color: white;
  textarea {
    flex: 1;
    height: 66%;
    border: 1px solid #efefef;
    background-color: #f8f8f8;
    resize: none;
    border-radius: 6px;
    padding: 5px;
  }
  .van-button {
    height: 100%;
    border: none;
  }
}
</style>
